www.gusucode.com > mbcmodels 工具箱 matlab 源码程序 > mbcmodels/@xregrbf/logisticrbf.m
function y = logisticrbf( r, m ) %XREGRBF/LOGISTICRBF Logistic RBF kernel with zero bias % LOGISTICRBF(R,M) is a matrix the same size as R containing the values of % the logistic RBF kernel with zero bias at the squared and weighted distances % given in R. % % The logistic RBF kernel with zero bias is given by phi(R) = 1/(1+exp(sqrt(R))), % where R is the squared and weighted distance. % Copyright 2000-2004 The MathWorks, Inc. and Ford Global Technologies, Inc. y = 1./(1 + exp( sqrt( r ) ) ); %------------------------------------------------------------------------------| % EOF %------------------------------------------------------------------------------|